Why won't the Pocket Pro+ accept the first calibration point?

Document ID

Document ID TE1877

Published Date

Published Date 27/05/2017
Question
Why won't the Pocket Pro+ accept the first calibration point?
Summary
Pocket Pro+ Calibration
Answer
The Pocket Pro+ is programmed to expect the 7 pH buffer when beginning a calibration. It is not possible to begin the calibration with the pH 4 or 10 buffers.